Apparatus for refining oil



(No Model.)

0 BORN &: J CAREY APPARATUS FOR RBPINING OILS.

No. 437,421. Patented Sept. 30. 1890.

INVENTOR WITNESSES I UNITED STATES PATENT OFFICE.

CHRISTIAN DORN AND JOHN CAREY, OF PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR REFINING OIL.

SPECIFICATION forming part of Letters Patent No. 437,421, dated September 30, 1890.

7 Application filed May 13, 1890. Serial No. 851,688. (No model.)

To all whom to may concern.-

' Be it known that We, CHRISTIAN DORN and JOHN CAREY, both citizens of the United States, and both residents of the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Apparatus for Purifying and Refining Oil, of which the following is a specification.

In the operation of machinery, oil which is poured upon the hearings to lubricate them, constantly drips from said hearings in greater or less quantities, and is usually thrown away and wasted, itbeing rendered unfit to be used again as a lubricant because while on the ma.- chine, and in running over parts of the machine adjacent to the bearings, and in dripping therefrom, it has taken up particles of metal, dust, and other foreign substances, which would in a second useof said oil tend to cut out the bearings.

It is the object of our invention to provide an oil purifying apparatus in which oil of various kinds can be cleaned, and in which especially the collected oil drippings from machinery, canbe treated in such manner as to separate particles of foreign substances from it, and fit it to be again used asa lubricant; while a further object is to provide an apparatus of the foregoing character which shall be more workmanlike, simple, and inexpensive, in construction, and more efficient and certain in operation, than such devices as heretofore constructed.

A preferred form of a convenient embodi-- ment of our invention is represented in the accompanying drawings and hereinafter described, the particular subject matter claimed as novel being hereinafter definitely speci fied.

In the drawings, Figure l is a side elevational view of an apparatus embodying our invention, and Fig. 2 is a central vertical sectional elevation of said apparatus.

Similar letters of reference indicate corre: sponding parts.

In the drawings, A is a tank or vat of any preferred size and shape, embodying two entirely separate compartments which are preferably formed as shown by the erection within the tank of a vertical diaphragm or wall a, extending from one tank wall to the other and from top to bottom of the said tank. One of these chambers we designate B and the other B.

C is the tank lid.

Within the upper portion of the tank B is a receiver D, being an open-topped and preferably funnel-shaped device, provided with a discharge pipe d leading from its outlet opening to a point close to the bottom of the tank, and provided with strainers d E is a steam coil, the extremities of which pass out of the sides of the tanlgand away to a source of steam supply. This heating coil conveniently surrounds thedischarge pipe (I, and is preferably located as near the bottom of the tank as possible, so that it will come into contact with the coolest portion of the oil which of course sinks to and exists in that part of the tank.

F indicate a series of pipes, any desired number of which are employed, and convenientlysupported by being passed through and mounted in the diaphragm a. These pipes,- opening respectively in both compartments, place the two in communication. The extremities of the pipes F occupy or are set at different levels in the two compartments, the object being to have such pipe extremities as are within the compartment B occupy as elevated a position as possible, so as to draw off the oil of least gravity, and to have such pipe extremities as are within the compartment B occupy a position near the bottom of the compartment, so as to discharge .the oil in that portion of said compartment. The liquid contained in the chamber B is all oil, while the liquid within the chamber B is as to its lower portion, from g to g, water, and from g to 9 oil. 7 H

H is a faucet, leading out from the base .of the compartment B, through which impurities or water precipitated to the bottom of said compartment may at stated intervals be withdrawn.

H is a faucet leading out of the bottom portion of the compartment B through which the water and any. impurities which maybe deposited in the space occupied by the water are withdrawn.

Ice

portion of the compartment B, about on the level which the oil of the gravity which it is desired to obtain,exists within said compartment, while J is a shelf or bracket on the exterior of the tank beneath said faucet I upon which a receiving vessel may be rested to receive the discharge of the oil through said faucet I.

K is a graduated glass gage tube, supported in vertical position within brackets or studs 70', at such elevation that the upper end of the tube is abreast of the oil, and the lower end of the tube is abreast of the water, and

the ends of which tube are respectively in communication with the interior of the compartment B. The stud 7c is formed or provided with a pet-cock by means of which any matter or impurities becoming lodged in the bottom of the tube may be withdrawn.

L is an inclosing lid which covers the top of the compartment B and prevents the accidental infiux of unpurified oil. In the lid is plug an aperture Z covered by an independent or lid Z The operation of theapparatus will be readworking of allied contrivances, and the processes in use in the refining and purifying of oil. The oil to be purified, and generally known to the trade by the name of dirty oil isdeposited in proper quantities within the receiver D, and descends by gravity through the discharge pipe d, emerging therefrom against the bottom of the compartment. Steam within the steam coil radiates heat and constantly increases the temperature of the oil within the compartment B, said coil being in such position that it is almost immediately encountered by fresh oil discharged into said compartment, and, as the heat is communicated to the oil, its gravityis diminished, and that of the lightest gravity ascends and exists in the vicinityof the upper ends of the pipes F. The oil when heated becomes to a certain extent freed from the impurities which it contains, and a considerable amount of said impurities are precipitated to and accumulate in the bottom of the compartment B, from whence they may be drawn off as stated through the faucet H. The compartment B as stated contains water in its lowest portion, the level of which water is above the lower ends of the pipes F,and above said water contains a body of oil which has passed from the compartment B through said pipes F and risen through said water. The oil in the receiver, the compartment B, and the compartment B, is all normally at a common level, and while the oil in the compartment B is being heated, that in the compartment B ,removed from the disturbing influence of the heat of the steam coil, and in a placid condition,- is settling and cooling. When the cooled and thoroughly settled oil is drawn off through the faucet I from the compartment B, and the level of the liquid in said compartment is thereby lowered, the oil in the compartment B,in its' effort to maintain a common level in the two compartments, passes down through the pipes F and emerges therefrom at the base of the compartment B, and near the bottom of the body of Water contained therein as explained, and this action continues until a common level is restored. When, again, fresh or dirty oil is charged into the compartment B, it raises the level of the oil in said compartment, and causes a sufficieut quantity of the oil which is uppermost in the body of the compartment B, and which is that of least gravity, to descend through the pipes F and join the body of oil in the compartment B, to restore said common level.

The arrangement of the apparatus shown,

and described is avaluable one: In the treatment of oil to purify it, it should be heated, passed through water, and allowed to settle, and in our apparatus these steps are performed in the most advantageous manner ,for the heating operation is carried on in a compartment by itself; the outlets for the oil from such compartment are so arranged that only oil which has been heated and risen to the top of the mass can escape; the oil escaping from the heating compartment B emerges through the pipes F, into the lower part of a body of water, and rises to the top of said water, where it is permitted to settle; the water is not in contact with nor heated by the coil; the lower ends of the pipes F are upturned to permit the flow of the oil through them with as little disturbance of the contents of the compartments B as pos-- sible, and said oil is therefore permitted to very thoroughly settle, while the impurities contained in it descend through the body of the water and accumulate in the bottom of said compartment B.

Fig. 2 shows the levels of the liquids in the two compartments and in the receiver just after a fresh amount of oil has been charged into said receiver.

The upper ends of the pipes F within the compartment B should be slightly above the level of the water in the compartment B, to prevent water from under any circumstances, backing into the compartment B.

The arrangement described is compact in I point of space, simple in the matter of me-' chanical construction, and exact in operation. Having thus described our invention, we claim:

1. In an apparatus for purifying andprefining oil, a tank having two compartments,

a heating device arranged within one of said compartments, and pipes leading from one compartment to the other, the extremities of which occupy positions at different elevations in the respective compartments, substantially as set forth.

2. An apparatus for purifying and refining oil, consisting of two compartments, a heating device arranged within one of said compartments, a receiving funnel provided with a pipe leading to the base of the compartment containing the heating device, and a pipe leading from one compartment to the other, the extremities of which are, in the compartment provided with the heating device, at a greater elevation than those in the other compartment, substantially as set forth.

3. In an apparatus for purifying and refining oil, a tank having two compartments, a heating device arranged within one of said compartments, a receiving funnel mounted in the upper portion of the heated compartment, a pipe leading from said receiving vessel to the base of said compartment, and pipes leading from one compartment to the other the extremities of which occupy positions at different elevations in the respective compartments, substantially as set forth.

4. In an apparatus for purifying and refining oil, a tank divided by a vertical transverse diaphragm into two compartments, and a series of pipes supported by said diaphragm and terminating respectively within said respective compartments, substantially as set forth.

5. In an apparatus for purifying and refining oil, a tank containing two compartments, a receiving funnel mounted in the upper portion of one compartment, a pipe leading from said funnel to the lower portion of said compartment, a steam coil surrounding said pipe, 0 and a series of pipes leading from one compartment to the other the extremities of which occupy a higher elevation in one compartment than in the other, substantially as set forth.

6; An apparatus for purifying and refining oil, consisting of two compartments, the first of which contains a heating device such as a steam coil, and a pipe leading to or nearly to the bottom of said compartment,-and the 40 second of which contains a body of cooling and purifying liquid such as water,a pipe leading from one compartment to the other, its extremity Within the second compartment being below the level of the water in said 45 compartment, and its extremity within the first compartment being above said water level, substantially asset forth.

In testimony that we claim the foregoing as our invention, we hereunto sign ournames 50 this 9th day of May, A. D. 1890.

- CHRISTIAN DORN.

JOHN CAREY.

Witnesses:

J. BONSALL TAYLOR, WM. 0. STRAWBRIDGE.

Q: It is hereby certified that in Letters Patent No. 437,421 granted September 30, 1 g, upon the application of Christian Born and John Garey, of Philadelphia, Pennsy. 6 fl nia, for an improvement in Apparatus for Refining-Oil, errors appear in the prin Z I specification requiring correction as follows: On page 1, in lines 60 and 66, and 5; ,1 page 2, line 33, the reference letter d should read I), and in line 102, page 2, Word compartments should read compartment and that the Letters Patent sho 23 I be read With these corrections therein that the same may conform to the record of g I case in the Patent Office. .3 Signed, oountersigned, and sealed this 7th day of October, A. D. 1890. .E [SEAL] CYRUS BUSSEY, 2 I Assistant Secretary of the [uteri (lountersigned: g I O. E. MIToJrELL, g i Commzsswner of Patents. Q3 

